"The spirit of the Old Testament is the Spirit of Christ.
--The first thing that Moses wrote, through the inspiration of the Spirit of God, was the story of creation.
--But the power of God in the line of salvation is the Gospel.
Therefore the works of creation teach the Gospel.
This is declared in Psalm xix., where we read, "The heavens declare the glory of God; and the firmament showeth His handiwork. Day unto day uttereth speech, and night unto night showeth knowledge. There is no speech nor language; without these their voice is heard. Their line is gone out through all the earth, and their words to the end of the world."
E.J. Waggoner